Rubber tire.



PATENTED MAY 12, 1908.

. USTIN.

ER TIRE.

FILED FEB. 14, lgoz.

I 4 7 MW N VEN T05 05192? Wmfi/z A TTORNEYS 1 city of New York, borough of Brooklyn, in the a vehicle-Wheel.

Patented May 12, 1 903.

PATENT OFFiCE.

ROBERT AUSTIN, OF BROOKLYN, NEW YORK.

RUBBER TIRE.

SPECIFIQATION' forming part of Letters Patent N0. 727,877, dated May 12, 1903.

Application filed February 14, 1902. Serial No. 94,053. (No model.) i

To all whom it may concern: I Be itknown that I, ROBERT AUSTIN, a citizen of the United States, and a resident of the county of Kings and State of NeWYork, have .invented new and useful Improvements in Rubber Tires, of which the following is a full,

, cate corresponding parts in all the figures.

Figure l is a perspective view, partly in section, showing my invention as applied to Fig. 2' is a sectional view upon the line a: a: in Fig. 1, and. Fig. 3 is a perspective view of one or the plates used in the tire.

The wheel 1 is provided with a'trough-. shaped rim 2.- The so-called solid tire 3 is provided centrally with an annular'hoop 4., of spring metal, and with a series of plates 5, disposed after the manner of a mutilated circle, .said circle being concentric with the general position of thehoopei. Each of the plates 5 is provided with mutilations, prefer ably consisting of the circular holes 6 and the semicircular apertures 7. 1 The plates are spaced asunder, as indicated in Fig. 2", and are also spaced from the hoop 4. The rubher is molded around the plates and hoop,.s'o

as to forma practically integral tire.

' My tire has great advantages over those in use. Theplates 5 act as bearing-plates and serve to distribute strains throughout the substance ofthe tire. Being disconnected from each other and spaced asunder, they do not interfere materially with the resiliency of the tire. .The reason why the .ho'op4fis centrally disposed is todistribute the straius upon the respectivecenters of the several plates. Thepiece 0t sheeting 8 is of the or'-" dinary kind; The hoop 4 islocated quite near the plates and is concentric to the nin tilated circle formed thereby. Whenthe hoop" is forced toward a plate, the little thickness ofrubber intervening does not. prevent the strain from being communicated, yet as the metallic parts are all separated and completely buried in the rubber the resiliency otthe tire as a whole is almost as great as would be the case if nothing but rubber were used.

The strength and durability of the tire are increasedto a degree far beyond the strength and durability of a tire composed entirely of rubber. As the rubber extends through the holes 6 and through the apertures 7, each plate is securely anchored and utterly unable to move in any direction from its general positiou. When after long use the tire begins to wear out and to become flabby, the hoop 4 by distributing strains through the several platestends to hold the tire in appropriate shape. v r

It will be noted thatthe rim 2 of the wheel is substantially trough shape and that the plates are located below the top of the rim and terminate in the substance of the rubber,

their ends thus being spaced-:from the trough so as to abut a surface of rubbe'r,which thereby serves as a fastening for the plates. The hoop 4. is preferably disposed about on a level with the top of the trough. By this arrangement undue movements of the rubber relatively to the plates and to the hoop are avoided and much wear and tear upon the tire is prevented. I find that this arrangement of parts is calculated to make a tire last'two to three times as long-as otherwise would be the case and that the resiliency'of tires' madein this manner .is but little, if any, inferior to that of tires made solely of rubber.

Having thus described my invention, I claim as new and desire to secureby Letters Patentv Arubber tire, comprising an endless mempletely buried therein, eachof said plates being provided with central perforations, and also'with mutilations upo'u its edges, for the purpose of anchoring boththe central porf tions and the edges of said plates firmly within said resilient material, and a single wire In testimony whereof I have signed my disposed centrally within said resilient rna- 'name to this specification in the presence of terialand encircling all of said bearing-plates, two subscribing witnesses.

said wire being totally disconnected from said ROBERT AUSTIN. plates'and spaced asunder thererjrom, so that Witnesses: said resilient material forms a cushion as be- MARVIN MCCAIN, tween said bearing-plates and said wire. '1. VEEDER HESSER. 

